Automatic check-valve for faucets.



H. P. MIKBSGH & E. ROMAN. AUTMATIG GHEGK VALVE FOB. FAUETS.

Prmoulon FILED M1149, 190e.

910,213. Patented Jan. 19, v1909.

j NvENTORS.

HENRY F. Mlm-:SCH EDWARD ROMAN BY I ATT'Y'S rear end of t H'INRY l". MIKICSUH AND EDWARD ROMANOF S'l`. LUIS, MISSOURI.

AUDGM'AHTIC GHEECKLVAIAVE F034 FAUCE'ISt Specification of Letters Patient.

' Applieationftlad March 19,

To altwhomit may concer/u;

Be 1t known that we, Hanna' F. Minnsoii `and lnwaiw Beaux, both citizens of the` United States, and residents of St. Louis, Missouri,have-invented certa-in new and, useful Lm rovements in Automatic Check Valves o1; Faucets, of. which the followingis a Specification.containinga full, clear, Van, exact descriptioinreference beinghad to the aconpanying drawings, forming a part hereo Our invention relatos to an automatic check valse fm' faucets, and the object of our invention istoxconstruct a combined automatic check valve with a faucet, which Check valve automatically closes to shut oil' the supply of water whenever the faucet is removed from the end of the service pipe to be repaired or cleaned.

To the above purposes, our invention consists'of certain novel features of construction and arrangement of parts which will be hereinafter more fully set forth, pointed out in our claim, and illustrated in the ac companying drawings, in which Figure 1 is a. vertical section through the center of a faucet and check valve of our improvedconstruction; Fig. 2 is an enlarged transverse section taken on the line 2 2 of Fig. 1; Fig. 3 is an enlarged transverse section taken on the line 3-3 of Fig. 1; Fig. 4 is a perspective View of the automatic check valve we make use of in carrying out our invention. Y

Referring by numerals to the accompanying drawings: 1 desi nates a faucet' which may be Q ffauy suita le construction, and provided with the usual o Vrating; handle 2, which is connected to an imparts reciprocating mot-,ion to the valvesbem 3, carrying on its rear end a valve 4, provided with a rubber bearing ring 5, which closes against a valve seat formed in the Arear end of the faucet 1.

The rear end of the faucet 1 is screwed into a nipple 7, the rear end of which is connected in any suitable manner to the liquid supply pipe 8. The forward end of the nipple is provided with a chamber 9, in which the valve 4 operates, and formed in the e ni ple is a chamber 10. Connecting the charnrbcrs 9 and 10 is a cylindrical opening 11, throu h which an automatic valve, hereinafter escribed, operates; and formed on the shoulder between the opening', 11 and chalutier` 1,0 iS a-couical vazlfve seat 1:2.

rBhe automatic valve comprises4 a. disk' 13,. thc fon-wardiedge of WhichI is' beveled; $9,216 to tit the conical valve seat L2; and formed' in the rean face oli said disk. is a. gnoove 14 which is adapted toreceive thepoint of; a. screwdriver, or lilcotool. li`ormed)intngral withtlle front faceiof the disk 13de a forwardly projecting plug 16, provided with wings 15, which latter are so arranged; aS that they bear against the sursfacfrofl the opening 11. The plug 16isof|such a length as' that. when the disk 13.is seated. upon-the conical valve seat. L2,` and they heaving ning; lis closedupon-,tlie valve seat 6the rear end,r 3? of. the valvestem engages against the front face of vsaid plug 16.

Passing diametrically through the rear portion of the nipple 7 is a pin 17, which also passes through a slot 15 formed through the plug 16, and which prevents the automatic valve comprising the disk 13, plug 16, and wings 15, from accidental displacement or removal from the opening 11.

When the handle 2 of the faucet 1 is engaged and swung into a position so as to open said faucet or move the valve 4 rear- ;.Wardly away from the valve seat 6, the rear end 3 of the valve stem, pressing on the plug 16, forces the disk 13 away from the valve seat 12, and thus the liquid is free to pass from the sup ly pi e 8 through the nipple 7, and throu li the aucet. 1.

When the andle 2 is shifted so as to close the faucet and bring the bearing rim;V against the valve seat 6, the pressure of the liquid on the rear side of the disk 13 will cause the same to move forwardl through the opening 11 until said disk 13 c uses upon the valve seat 12. i

When it isdesired to clean, repair, or re pack the faucet 1 the same is unscrewed from the nipple 7, an` when removed therefrom, the pressure of the liquid against the rear side of the disk 13 causes the same to close upon the valve seat l2; and thus said liquid is prevented from discharging through the nipple 7 hus, any faucet equi pcd with our au tomatic check valve may e removed without interfering with the service of the other fau Gets, and it is not necessary to cut off the entire supply through the service ipe.

The device is very simple and nexpensiv' and can be applied to all forms of faucets wherein a reciprocating valve is-made use of.

The groove 14 is provided so that should it become necessary, the disk 13 and valve seat 12 can be ground so as to make a perfect fit by removing the nipple 7, placing a small amount of pulverized einery, or analogous material, on the valve seat 12, and then rotating the disk 13 by means of a screw-driver, or like tool.

While a faucet of our improved construction is closed, the normal pressure of the water or liquid is upon the dlsk 13, thus in a measure reducing the pressure upon the bearing ring 5 of the faucet valve, thus normally increasing the lenofth of time that said bearlng ring can be use A device of our improved construction is applicable for use in combination with all forms of faucets andocks, wherein a reciprocatin valve stem is made use of.

We c aim The combination with a reci rocating l arranged slot through the body of the valve, 1 a pin having its ends seated in the nipple,

valve faucet and a supply pi e, o. a nipple runiting the faucet and supp y plpe which 1 nippleentirely incloses the faucet valve, in

the rear end of-which nipple is formed a and which pin passes through the slot in the body of the valve to limit the movement in both directions, a flan e integral With the rear end of the valve'bo y, the edge of which flange is formed to t the valve seat Within the nipple, there being a slot formed in the rear end of the body of the valve, and which valve is moved rearwardly and unseated by the reciprocation of the faucet valve.

In testimony whereof, we have signed our names to this specication, in presence of two subscribing witnesses.

HENRY F. MIKESCH. EDWARD ROMAN. Witnesses:

M. P. SMITH, H. G. FLETCHER. 

